US20080062681A1 - Theatre light apparatus incorporating LED tracking system - Google Patents
Theatre light apparatus incorporating LED tracking system Download PDFInfo
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- US20080062681A1 US20080062681A1 US11/516,822 US51682206A US2008062681A1 US 20080062681 A1 US20080062681 A1 US 20080062681A1 US 51682206 A US51682206 A US 51682206A US 2008062681 A1 US2008062681 A1 US 2008062681A1
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- lighting apparatus
- light emitting
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- theatre lighting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/14—Adjustable mountings
- F21V21/15—Adjustable mountings specially adapted for power operation, e.g. by remote control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S10/00—Lighting devices or systems producing a varying lighting effect
- F21S10/007—Lighting devices or systems producing a varying lighting effect using rotating transparent or colored disks, e.g. gobo wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S10/00—Lighting devices or systems producing a varying lighting effect
- F21S10/02—Lighting devices or systems producing a varying lighting effect changing colors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
- H05B41/288—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/40—Lighting for industrial, commercial, recreational or military use
- F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2113/00—Combination of light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2113/00—Combination of light sources
- F21Y2113/20—Combination of light sources of different form
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
- This invention relates to multiparameter lighting fixtures.
- Multiparameter lighting fixtures are lighting fixtures, which illustratively have two or more individually remotely adjustable parameters such as focus, color, image, position, or other light characteristics. Multiparameter lighting fixtures are widely used in the lighting industry because they facilitate significant reductions in overall lighting system size and permit dynamic changes to the final lighting effect. Applications and events in which multiparameter lighting fixtures are used to great advantage include showrooms, television lighting, stage lighting, architectural lighting, live concerts, and theme parks. Illustrative multi-parameter lighting fixtures are described in the product brochure showing the High End Systems product line for the year 2000 and are available from High End Systems, Inc. of Austin, Tex.
- Multiparameter lighting fixtures are commonly constructed with a lamp housing that may pan and tilt in relation to a base housing so that light projected from the lamp housing can be remotely positioned to project on the stage surface. Commonly a plurality of multiparameter lights are controlled by an operator from a central controller. The central controller is connected to communicate with the plurality of multiparameter lights via a communication system. U.S. Pat. No. 4,392,182 titled “Computer controlled lighting system having automatically variable position, color, intensity and beam divergence” to Bornhorst and incorporated herein by reference, disclosed a plurality of multiparameter lights and a central controller.
- The lamp housing of the multiparameter light contains the optical components and the lamp. The lamp housing is rotatably mounted to a yoke that provides for a tilting action of the lamp housing in relation to the yoke. The lamp housing is tilted in relation to the yoke by a motor actuator system that provides remote control of the tilting action by the central controller. The yoke is rotatably connected to the base housing that provides for a panning action of the yoke in relation to the base housing. The yoke is panned in relation to the base housing by a motor actuator system that provides remote control of the panning action by the central controller.
- It is desirable for a multiparameter light to have a large light output aperture to create a large beam of light cross section. This often causes a problem because the final output lens that often establishes the output aperture of a multiparameter light must be large in diameter. When the output lens diameter exceeds eight inches the glass lens can become quite heavy. The increased weight of the lens requires a more expensive support frame and larger motors to drive the increased weight of the lamp housing.
- A novel high power multiparameter light apparatus is disclosed. The multiparameter light of one or more embodiments of the present invention incorporates an LED (light emitting diode) tracking ring surrounding a main output lens. The LED tracking ring is capable of additive color mixing and in turn can simulate the color of the main projected light projecting from the main output aperture or output lens of the multiparameter light.
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FIG. 1 shows a multiparameter light in accordance with an embodiment of the present invention; -
FIG. 2A shows a fresnel lens and an LED tracking ring incorporated into the multiparameter light ofFIG. 1 ; -
FIG. 2B shows an LED from the color tracking ring ofFIG. 2A comprised of a plurality of separate colored LEDs; -
FIG. 2C shows an LED from the color tracking ring ofFIG. 2A comprised of a single RGB (red, green, and blue) LED; -
FIG. 3 shows an internal view of components of a lamp housing of the multiparameter light ofFIG. 1 ; -
FIG. 4 shows an internal view of the components of the base housing of the multiparameter light ofFIG. 1 ; and -
FIG. 5 shows a lighting system comprised or a plurality of multiparameter lights in accordance with an embodiment of the present invention connected for communication to a central controller. - In the description that follows, like parts are marked throughout the specification and drawings with the same reference numerals, respectively. The drawing figures are not necessarily to scale. Certain features of embodiments of the present invention may be shown exaggerated in scale or in somewhat schematic form and some details of conventional elements may not be shown in the interest of clarity and conciseness. The present invention is susceptible to embodiments of different forms. There are shown in the drawings, and herein will be described in detail, specific embodiments of the present invention with the understanding that the present disclosure is to be considered an exemplification of the principles of the invention, and is not intended to limit the invention to that illustrated and described herein. It is to be fully recognized that the different teachings of the embodiments discussed below may be employed separately or in any suitable combination to produce the desired results.
- In particular, various embodiments of the present invention provide a number of different methods and apparatus for operating and controlling multiple IPLD lighting systems. The concepts of the invention are discussed in the context of IPLD lighting systems but the use of the concepts of the present invention is not limited to IPLD systems and may find application in other lighting and other visual systems where control of the system is maintained from a remote location and to which the concepts of the current invention may be applied.
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FIG. 1 shows amultiparameter light 100 in accordance with an embodiment of the present invention. Themultiparameter light 100 includes alamp housing 300 and abase housing 400. Themultiparameter light 100 is capable of remotely panning and tilting thelamp housing 300 in relation to thebase housing 400. Thelamp housing 300 is mounted bybearing assemblies lamp housing 300 can tilt in relation to ayoke 110. Theyoke 110 can pan in relation to thebase housing 400 by means of abearing 105. Thelamp housing 300 is remotely tilted in relation to thebase housing 400 by a first motor actuator not shown for simplicity. Theyoke 110 is remotely panned in relation to thebase housing 400 by a second motor actuator not shown for simplicity. - The
lamp housing 300 includes, or has located therein, anoutput lens 340. Theoutput lens 340 may be a polymer fresnel lens and typically is the main output lens of thelamp housing 300. A polymer fresnel lens is used in accordance with an embodiment of the present invention foroutput lens 340 to reduce the weight associated with glass fresnel lenses of the prior art. Theoutput lens 340 includes anoutput aperture 340 a shown inFIG. 2A . Also shown is a plurality of LEDs that are used for form anLED tracking ring 302. Glass fresnel lenses are used in the prior art for non-imaging applications and therefore are used in wash lights that do not project a pattern (referred to as gobo in the art). In accordance with one or more embodiments of the present invention, it has been found that with the use of a close tolerance polymer fresnel lens foroutput lens 340, patterns formed by gobos placed into a light path by a gobo wheel can be projected by an automated theatre light of one or more embodiments of the present invention without too much distortion caused by any abnormalities of theoutput lens 340. Generally, the use of a gobo wheel comprising gobo patterns that can be indexed into a light path for projection by an automated theatrical light is known in the art and is disclosed in U.S. Pat. No. 5,402,326 titled “Gobo Holder for a Lighting System”, inventor Richard Belliveau (co-inventor on present application). Most high tolerance polymer fresnel lenses are constructed of acrylic however it has been found that the use of a polycarbonate fresnel lens can be used to accommodate the elevated temperatures found in high performance theatrical lights - The
base housing 400 has agraphical display 404 andinput keys multiparameter light 100. The multiparameter light also includes apower input cord 406 for connecting themultiparameter light 100 to a source of power. -
FIG. 2A shows a more detailed drawing of a possible embodiment for thelamp housing 300. TheLED tracking ring 302 is shown constructed of a circular array of LEDs shown asLEDs 350 a through 350 x that are located along the perimeter of theoutput lens 340 in a ring like fashion. -
FIG. 3 shows an internal look at components of thelamp housing 300 of themultiparameter light 100 in accordance with an embodiment of the present invention. Thelamp housing 300 includes, or has located therein, acentral lamp 308. Thecentral lamp 308 may be a metal halide, mercury, xenon, halogen, LED or other light source. Thecentral lamp 308 haspower wires 312 connected thereto. Thecentral lamp 308 is contained within areflector 310 that reflects light emitted by thecentral lamp 308 forward along alight pathway 303 shown by a dashed line. Thelamp housing 300 includes, or has located therein, astrobe shutter 313, which is driven by amotor actuator 316 s. Agobo wheel 317 is shown and various gobos placed upon the gobo wheel can be driven into the light path orlight pathway 303 bymotor actuator 316 g to be focused by a focusinglens 325 driven by amotor actuator 316 g. Thelamp housing 300 further includes, or has located therein, avariable iris 314. Thevariable iris 314 is remotely varied in thelight path 303 by amotor actuator 316 i. Thelamp housing 300 further includes, or has located therein, acolor filter wheel 315, which may contain several different colors that can be varied in thelight path 303. Thecolor filter wheel 315 is driven by amotor actuator 316 w. - The
lamp housing 300 may further include, or have located therein, a subtractive color system using Cyan, Magenta and Yellow (refered to as CMY). The subtractive color system may be used to variably modify the colors of the projected light fromcentral lamp 308. The subtractive color system may be constructed of dichroic color filter media that is fashioned into color filter flags 320 c, 320 m and 320 y that are serially positioned in thelight path 303 and can be varied across thelight path 303 by motors. The color filter flags 320 c, 320 m, and 320 y, may be cyan, magenta, and yellow color filter flags, respectively. The cyancolor filter flag 320 c is varied in thelight path 303 by amotor actuator 316 c. The magentacolor filter flag 320 m is varied in thelight path 303 by amotor actuator 316 m. The yellowcolor filter flag 320 y is varied in thelight path 303 by amotor actuator 316 y. Thecolor filter wheel 315 acts as a color varying system to vary the color of the light emitted by theoutput lens 340. The system of CMY (cyan, magenta, and yellow) color filters acts as a color varying system to vary the color of the light emitted by theoutput lens 340. - The
focus lens 325 ofFIG. 3 is shown varied in thelight path 303 by alead screw system 325 w bymotor actuator 316 f. Afirst flag 330 g is used to vary optical power and is varied in thelight path 303 by amotor actuator 316 g. Asecond flag 330 h is used to vary optical power and is varied in thelight path 303 by amotor actuator 316 h. The first andsecond flags output lens 340 from a hard edge (imaging application) to a soft edge (non-imaging application). When the opticalpower varying flags light path 303, gobo images from thegobo wheel 317 are not focusable and the automated theatre light ormultiparameter light 100 converts from a hard edge to a soft edge light output fromoutput lens 340 - The
output lens 340 is a fresnel lens constructed of a polymer. The polymer material may be clear acrylic or polycarbonate. Theoutput lens 340 is varied in the optical path orlight pathway 303 bylead screw system 340 w driven bymotor actuator 316 z. Theoutput lens 340 may work in conjunction with thefocus lens 325 to operate as a zoom and focus lens system. - An LED (light emitting diode) 350 a is shown along with the simplified wiring connection points 350 aw. A second LED (light emitting diode) 350 m is shown along with simplified connection points 350 bw. The connection points 350 aw and 350 bw connect to the
LED control 442 ofFIG. 4 but are not shown connected for simplification. TheLEDs FIG. 3 are the same asLEDs FIG. 2A . In the drawing of thelamp housing 300 ofFIG. 3 only two of the LEDs that make up theLED tracking ring 302 ofFIG. 2A are shown for simplicity. -
FIG. 4 shows components in thebase housing 400 ofFIG. 1 . Apower input cord 406 is shown for providing a means of supplying operating power. Twocommunication input connectors communications port 460. Thecommunications port 460 may be constructed of an industry standard RS422 or RS485 driver system as known in the art. Thecommunications port 460 forwards control information to aprocessor 416. Theprocessor 416 may be a single processor or a plurality of processors working together. Theprocessor 416 working in conjunction with operational code stored in amemory 415 receives commands from a central control system such as acentral controller 510 shown inFIG. 5 . Theprocessor 416 may send instructions to amotor actuator control 432 to vary the state ofmotors - The
motor control 432 also can vary the pan and tilt motors, not shown for simplification, that cause thelamp housing 300 to tilt in relation to theyoke 110 and theyoke 110 to pan in relation to thebase housing 400. Thebase housing 400 also includes or may have located therein, a motor andlogic power supply 430, which may supply the necessary power to operate all of the motors and the logic circuitry included or inside thebase housing 400. - The
processor 416 may operate to send control signals to a lamp power supply 428 which remotely enable and power thecentral lamp 308. Theprocessor 416 may send control signals to anLED control 442 that is connected (wiring not shown for simplification) to the plurality ofLEDs 350 a through 350 x that comprise theLED tracking ring 302 ofFIG. 1 . TheLED control 442 provides three separate control signals that include a first control signal for the simultaneous control of all of the red LEDs, a second control signal for the simultaneous control of all of the green LEDs and a third control signal for simultaneous control of all of the blue LEDs that make up theLEDs 350 a through 350 x. Alternatively theLED control 442 may provide a separate control signal for each red, blue and green component of each of theLEDs 350 a through 350 x. TheLED power supply 440 may supply the necessary power to operate theLEDs 350 a through 350 x that are provided their driving signals by theLED control 442. TheLEDs 350 a though 350 x emit variably colored light that can color match the color of the light projected by theoutput lens 340 through theoutput aperture 340 a shown inFIG. 2A . - External input buttons switches 402 a, 402 b, 402 c, and 402 d may be mounted to a
circuit board 402 which may be or may be part of a means for external input commands. The action ofswitches control input 422 and sent to theprocessor 416 as external input commands. Adisplay device 404, which may be a dot matrix or other graphical display, is used to provide feedback to an operator. Thedisplay device 404 is driven by adisplay driver 420 that receives commands from theprocessor 416 to alter display characters of thedisplay device 404. Theswitches circuit board 402, controlinput 422,display device 404 and thedisplay driver 420 are components of a standalone control system 424 shown by the dashed lines. -
FIG. 5 shows three multiparameter lights ormultiparameter theatre lights communications wires central controller 500. Thecentral controller 500 can communicate commands to themultiparameter theatre lights central controller 500 has adisplay device 506,input devices 502 and akeyboard 504. Theinput devices 502 includeinput devices input devices 502 and thekeyboard 504 may be any type of input devices including potentiometers, encoders or a touch screen that is placed over thedisplay device 506 An operator of the central controller may remotely operate thelights input devices keyboard 504. Thedisplay device 506 may also be a touch screen display device and as such may also accept input commands from an operator. Thecentral controller 500 may be equipped to vary the color and intensity of theLED tracking ring 302 ofFIG. 2A as well as the color and intensity of the light projected from theoutput lens 340. The light projected by theoutput lens 340 and throughoutput aperture 340 a can also be referred to as the main output light. It is preferred that theoutput lens 340 be both the output lens and have anoutput aperture 340 a, but is it also possible for the output aperture to be separate from the lens such as when using a clear window placed after the lens. Although only threeautomated theatre lights FIG. 5 , many more theatre lights in accordance with one or more embodiments of the invention may be controlled by thecentral controller 500. - The LEDs in the
color tracking ring 350 a through 350 x ofFIG. 2A may each be comprised of a plurality of Red, Green and Blue separate LEDs.FIG. 2B showsLED 350 m ofFIG. 2A comprised ofseparate LEDs Separate LED 360 r represents a separate red LED,separate LED 360 g represents a separate green LED, andseparate LED 360 b represents a separate blue LED.FIG. 2C showsLED 350 p ofFIG. 2A comprised of a single LED that has been manufactured to incorporate three LED dies 370 r, 370 g, and 370 b into asingle output aperture 370. It is preferred that theLED tracking ring 302 be comprised ofLEDs 350 a through 350 x, each of which have been manufactured to incorporate the red, green and blue LED dies into a single output aperture like the RGB LED shown inFIG. 2C . The single package red, green and blue (RGB) provides a better homogenous color blend to the eye when looking at the system operate. - The
multiparameter theatre light 100 can operate to project light (main output light) originating from thecentral lamp 308 and passing through theoutput lens 340 andoutput lens aperture 340 a. Themotors light pathway 303. Varying the color filter flags 320 c, 320 m and 320 y varies the saturation of the cyan, magenta and yellow color, respectively, applied to light in thelight pathway 303. Varying the color of the projected light from a multiparameter theatre light, by using cyan, magenta and yellow filters is well known in the art. This practice is referred to as CMY (cyan, magenta and yellow) color mixing. CMY is also referred to in the art as “subtractive color mixing”. A product called “Cyberlight” (trademarked) manufactured by High End Systems and described in the “The High End Systems Product Line 2001” brochure makes use of a CMY system to vary the color of the projected light. - The
multiparameter theatre light 100 ofFIG. 5 is typically remotely controlled by an operator of thecentral controller 500. The operator first selects which of the plurality ofmultiparameter theatre lights keyboard 504. If the operator enters the address of light 100 the operator may next vary the CMY saturation of the main output remotely by adjustinginput devices 502 c for cyan, 502 m for magenta, and 502 y for yellow. The color varying control commands created by the operator with thecontrol system 500 are sent over thecommunication wire 510 and received by thecommunications port 460 ofFIG. 4 . Thecommunications port 460 passes the commands to theprocessor 416. Theprocessor 416 acts on the color varying commands in accordance with the operating software stored in thememory 415 and sends the appropriate control signals to themotor control system 432. Themotor control system 432 sends driving signals to themotors CMY color flags light path 303 to the desired color variation specified by the operator of thecontrol system 500. - The operator may individually adjust cyan, magenta or yellow to achieve a mixed color in the visible spectrum.
- The
multiparameter theatre light 100 ofFIG. 5 may also have the LED tracking ring color (i.e. produced by LEDs 350 a-x) varied by an operator of thecentral controller 500 in a similar manner to the CMY control used for varying the color of the main output (i.e. produced fromlamp 308 throughaperture 340 a of lens 340). After selecting themultiparameter theatre light 100, for example, the operator can adjust the input devices 502 r, 502 g and 502 b. In response to the adjustment of the input devices 502 r, 502 g and 502 b, the tracking ring color varying commands are created by thecentral controller 500 and are sent overcommunications wire 510 to the light 100. The light 100 receives the tracking ring color varying commands at thecommunications port 460 and sends the received commands to theprocessor 416. Theprocessor 416 acts on these commands in accordance with the operating software stored in thememory 415 and sends the appropriate control signals to theLED control 442. TheLED control 442 sends driving signals to theLEDs 350 a though 350 x to control the LEDs intensity to vary the color emitted by the LEDs to that specified by the operator of thecentral controller 500. - When the operator adjusts the input device 502 r of
FIG. 5 the intensity of the red part, section, or separate LED of all of theLEDs 350 a though 350 x ofFIG. 2A are simultaneously adjusted. When the operator adjusts the input device 502 b ofFIG. 5 the intensity of the blue part, section or separate LED of all of theLEDs 350 a though 350 x ofFIG. 2A are simultaneously adjusted. When the operator adjusts the input device 502 g ofFIG. 5 the intensity of the green part, section or separate LED of all of theLEDs 350 a though 350 x ofFIG. 2A are simultaneously adjusted. This allows the operator to control the intensity of the red, green and blue LEDs that make up theLEDS 350 a though 350 x ofFIG. 2A . Controlling the intensity of the red, green and blue LEDs that compriseLEDs 350 s through 350 x provides for an additive color mixing or RGB mixing of thecolor tracking ring 302. The term additive color mixing (or RGB color mixing) is well defined in the art. An additive color mixing system combines the primary colors of red, green and blue sources of light (RGB) to produce the secondary colors of cyan, magenta, and yellow (CMY). Combining all three primary colors in equally perceived intensities can produce white. Varying the intensities of the red, green and blue results in producing a wide variation of color. The RGB color mixing allows thecolor tracking ring 302 to vary color within the visible spectrum in a different way than CMY color mixing that is accomplished by varying thecolor mixing flags light path 303 of the projected light that is created by thecentral lamp 308 and the projected light created by thelamp 308 and projected by through thelens aperture 340 a is referred to as the main output. The operator can use theLED tracking ring 302 to match a visible color of the main output project light. This produces a pleasing effect where the color of the main output projected light is color matched or tracked by the light created by theLED tracking ring 302. - In practice the
multiparameter theatre lights FIG. 5 may each have a blue light projected as a main output projected light from thelens aperture 340 a ofFIG. 3 using CMY color mixing and thecolor tracking ring 302 may be color matched to the blue color of the main output projected light. Alternatively a pleasing complementary color may be created by thecolor tracking ring 302 in relation to the color of the main output projected light. If the colored light projected by the main output is blue then thecolor tracking ring 302 may be adjusted by an operator of thecentral control system 500 using the input controls 502 r, 502 b and 502 y to produce a yellow light by varying theRGB LEDs 350 a though 350 x. The color of the main output projected light can be matched to thecolor tracking ring 302 by an operator of thecentral control system 500 ofFIG. 5 . Alternatively a complementary color can be created. - The
multiparameter theatre light 100 ofFIG. 1 can also create a strobing effect of the main output projected light projected through thelens 340 and theaperture 340 a ofFIG. 1 . This is accomplished when an operator of thecontrol system 500 ofFIG. 5 selects one of themultiparameter theatre lights keypad 504. The rate can be a variable strobe rate but most strobe rates are variable between one Hz to twenty Hz. Upon receiving the main output strobe commands generated by thecentral controller 500 and sent over thecommunication wire 510 the light 100 receives the strobe commands at thecommunications port 460 and sends the received commands to theprocessor 416. Theprocessor 416 acts on the main output strobe commands in accordance with the operating software stored in thememory 415 and sends the appropriate control signals to themotor control system 432. Themotor control system 432 sends driving signals to themotor 316 s to drive thestrobe shutter 313 into and out of thelight path 303 at the desired control rate specified by the operator of thecontrol system 500. The use of a strobe shutter in a light path of a multiparameter light, in a general sense, is known in the theatre art. - The operator of the
control system 500 ofFIG. 5 may also wish to control theLED tracking ring 302 to strobe the intensity of the light emitted by theLEDs 350 athought 350 x. The operator of thecontrol system 500 after selecting one or more of the plurality ofmultiparameter theatre lights FIG. 5 may enter an input with theinput keyboard 504 to enter a strobe rate for theLED tracking ring 302. In this example the operator has selected the light 100 and wishes to control the strobe rate of theLED tracking ring 302 to create a new dynamic effect. Thecentral controller 500 ofFIG. 5 sends the LED tracking ring strobe commands to themultiparameter theatre light 100 overcommunications wire 510. Upon receiving the LED tracking ring strobe commands generated by thecentral controller 500 the light 100 receives the LED tracking strobe commands at thecommunications port 460 and sends the received commands to theprocessor 416. Theprocessor 416 acts on these commands in accordance with the operating software stored in thememory 415 and sends the appropriate control signals to theLED control 442. TheLED control 442 sends driving signals to theLEDs 350 a though 350 x to control the LEDs intensity at a rate used to create the required strobe rate. The strobe rate of theLED tracking ring 302 may be synchronous and in phase with the strobe rate of the main output projected light projected through theoutput lens 340 and through theaperture 340 a or the strobe rate be different. Alternatively, the operator of thecentral control system 500 ofFIG. 5 may cause the strobe rate of the main output projected light to toggle with the strobe of theLED tracking ring 302. Toggle is explained as the following: When light is being projected from the main output, i.e. fromoutput lens 340, theLED tracking ring 302 is essentially in a dark phase of the strobe cycle. During the dark portion of the strobe cycle of the main output projected light, the strobe portion of theLED tracking ring 302 is in the illumination phase. In this way a strobe toggle is created by toggling light output between the main output projected light fromlens 340 and the light from theLED tracking ring 302 in synchronization. - The commands for the color varying of the main output and the
LED tracking ring 302 and the strobe commands for the main output andLED tracking ring 302 can also be created by an operator inputting to the standalone control system 424. The operator may input commands through theinput devices input devices control input system 422 to theprocessor 416. Theprocessor 416 acting in accordance with thememory 415 can process the commands to control the color varying or strobing of the main output projected light fromoutput lens 340 or theLED tracking ring 302. - The
LED tracking ring 302 is shown surrounding theaperture 340 a of theoutput lens 340 and it is preferred to be a ring that surrounds theaperture 340 a. TheLED tracking ring 302 could take on a different look if desired and may be constructed of a different geometric shape other than a ring. Thelamp 308 could also be a comprised of a plurality of LEDs and in this case thelens 340 would not be required. Alternatively, theoutput lens 340 andaperture 340 a may not be located in the center of theLED tracking ring 302. - The red LEDs of the
LED tracking ring 302 may be connectively wired so that all red LED components of theLEDs 350 a through 350 x of thetracking ring 302 are driven simultaneously as described. The blue LEDs of theLED tracking ring 302 may be wired so that all blue LED components of theLEDs 350 a through 350 x of thetracking ring 302 are driven simultaneously as described. The LEDs of theLED tracking ring 302 may be wired so that all green LED components of theLEDs 350 a through 350 x of thetracking ring 302 are driven simultaneously as described. Alternatively separate control of each color component of eachLED 350 a through 350 x may be driven by theLED control 442 ofFIG. 4 .
Claims (48)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/516,822 US7600891B2 (en) | 2006-09-07 | 2006-09-07 | Theatre light apparatus incorporating LED tracking system |
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US11/780,739 US20080062684A1 (en) | 2006-09-07 | 2007-07-20 | Theatre light apparatus incorporating independently controlled color flags |
US11/836,864 US20080062685A1 (en) | 2006-09-07 | 2007-08-10 | Theatre light apparatus incorporating led tracking system |
US12/054,647 US7527389B2 (en) | 2006-09-07 | 2008-03-25 | Theatre light apparatus incorporating LED tracking system |
US12/246,132 US7600892B2 (en) | 2006-09-07 | 2008-10-06 | Theatre light apparatus incorporating LED tracking system |
US13/070,546 USRE44195E1 (en) | 2006-09-07 | 2011-03-24 | Theatre light apparatus incorporating LED tracking system |
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US11/710,735 Continuation US7543955B2 (en) | 2006-09-07 | 2007-02-26 | Theatre light apparatus incorporating LED tracking system |
US11/780,739 Continuation-In-Part US20080062684A1 (en) | 2006-09-07 | 2007-07-20 | Theatre light apparatus incorporating independently controlled color flags |
US11/836,864 Continuation US20080062685A1 (en) | 2006-09-07 | 2007-08-10 | Theatre light apparatus incorporating led tracking system |
US12/054,647 Continuation US7527389B2 (en) | 2006-09-07 | 2008-03-25 | Theatre light apparatus incorporating LED tracking system |
US12/246,132 Continuation US7600892B2 (en) | 2006-09-07 | 2008-10-06 | Theatre light apparatus incorporating LED tracking system |
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US11/710,735 Ceased US7543955B2 (en) | 2006-09-07 | 2007-02-26 | Theatre light apparatus incorporating LED tracking system |
US11/836,864 Abandoned US20080062685A1 (en) | 2006-09-07 | 2007-08-10 | Theatre light apparatus incorporating led tracking system |
US12/054,647 Active US7527389B2 (en) | 2006-09-07 | 2008-03-25 | Theatre light apparatus incorporating LED tracking system |
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US13/070,546 Active 2026-12-15 USRE44195E1 (en) | 2006-09-07 | 2011-03-24 | Theatre light apparatus incorporating LED tracking system |
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US12/246,132 Active US7600892B2 (en) | 2006-09-07 | 2008-10-06 | Theatre light apparatus incorporating LED tracking system |
US13/070,546 Active 2026-12-15 USRE44195E1 (en) | 2006-09-07 | 2011-03-24 | Theatre light apparatus incorporating LED tracking system |
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Also Published As
Publication number | Publication date |
---|---|
US20080062685A1 (en) | 2008-03-13 |
US7600891B2 (en) | 2009-10-13 |
US20080165531A1 (en) | 2008-07-10 |
US20090027881A1 (en) | 2009-01-29 |
US20080062683A1 (en) | 2008-03-13 |
US7543955B2 (en) | 2009-06-09 |
US7600892B2 (en) | 2009-10-13 |
US7527389B2 (en) | 2009-05-05 |
USRE44195E1 (en) | 2013-05-07 |
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